AI agents use ppt_set_shadow to create or update resources in Ppt — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ppt environment.
The tool modifies visual properties of presentation elements (shape shadow effects) but does not execute arbitrary code, delete content, or create financial obligations. Changes are reversible, making this a Write operation rather than Execute. Severity is medium because misuse could degrade presentation quality or overwrite intended styling, but the impact is limited to cosmetic formatting of a single shape.
From the tool's definition Tool name 'ppt_set_shadow' and description 'Set shadow effect on a shape' indicates modification of presentation object properties.
Documented attack patterns abuse exactly the kind of access ppt_set_shadow gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ppt, and nothing reaches the server without passing your rules. This is the rule we recommend for ppt_set_shadow:
{
"version": "1",
"default": "deny",
"tools": {
"ppt_set_shadow": {
"limits": [
{
"counter": "ppt_set_shadow_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}ppt_set_shadow stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Set shadow effect on a shape. It is categorised as a Write tool in the Ppt MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ppt MCP server in PolicyLayer and add a rule for ppt_set_shadow: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ppt. Nothing to install.
ppt_set_shadow is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the ppt_set_shadow rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for ppt_set_shadow. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
ppt_set_shadow is provided by the Ppt MCP server (ykuwai/ppt-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 156 Ppt tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
156 Ppt tools catalogued and risk-classified — across an index of 42,500+ MCP servers.